3800mAh 3.7V Rechargeable Li-ion Battery for LG Optimus G3 VS985/D855/D830/D851/F400/D850 Compatible Brand: For LG Optimus G3 VS985/D855/D830/D851/F400/D850 Rated capacity: 3800mAh Output Voltage: 3.7V Battery type: Lithium-ion polymer battery